Bellows



P. HEILIGEB.

BELLOWS.

APPLICATION FILED SEPT. 16, 1920.

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UNITED" s' rA TE iP ATENr- OFFICE.

ram. mumm es some rimx, mar ners.-

nnmaows.

To all "wfiom it may oomcm;

Be it hown that I, PAUL Hairless, a citizen of the United States, residing at Forest'Parlr, in the county of Cook and. State of Illinois, have invented new and useful Improvements in Bel1ows, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawing, forming a part of this specification.

My invention relates to improvements in bellows especially applicable to vacuum cleaners, and has for its object the production of a bellows that will give eficient service with few? parts. 1 r g A further object is the production of a device that can be cheaply and quickly assembled, and one not liable to disarrangement of parts. I

These and such other objects as may appear hereinafter are attained by my evice, an embodiment of which is illustrated in the accompanying drawingin which- Figured represents a sectional view of my improved bellows Fig. 2- represents a sectional view on the line 9? of Fig. 1, looking in the direction indicated by the arrows;

Fig. 3 re resents a sectional view on the line 3-3 0' Fig" 1, looking in the direction indicated by the arrows; and

Fig. i representsa perspective view with parts broken away, showing a portion of a vacuum cleaner with my improved bellows in position.

Like numerals of reference indicate like parts in the several figures of the drawin s.

' eterring now to the drawings-5 represents a vacuum cleaner with bellows openings 8, 7, fiche which pipes 8, 8 communicate with the dust or suction chamber 9."

The bellows A, A are rigidly mounted at one and pivctally connected together by a curved connecting arm 10.

No further description of the operation of the vacuum cleaner is thought necessary at this time, as this application has to do simply with the construction of the bellows itself, which may be used in connection with sired.

placed within the interior 0 take a against 'ing taken to close specification of I.etters'Iatent. PatentedJune 21, 1921, Application filed September is, 1920. Serial No. 410,604. other devices Referring now to Figure 1--the bellows proper comprises end rin 11, 11, over the ends of which is drawn t e fabric 12 forming the covering for thebellows. The end of the fabric is turned down over as indicated at l3, l3, and rings 14, M secured thereto binding the fabric tightly against the end rings. Intermediate spreader rings 15, of a diameter practically the same as that of the end rings are rovided, and the bellows. intermediate rings 16 are provided, spaced apart between the other inside rings; this construction giving the concertina efiect of the ordinary bellows,

In forming my improved construction, I fabric cylinder open at both ends and force within a ring 15", pushing the ring inside the fabric until it reaches the center. I then place outside the 15, 15; then smaller rings on the outsi 16, 16, and continue until the entire length of the bellows desired is built up, I then insert the end ringslQ, pullinthe fabric tightly around the ring, and p ace the end plate rini M- in position, securing it tightly t e end rings 11 ll. By this method of construction l am able to provide a device that can be very quickly constructed, and once constructed is never liable to disarrangement of parts.

After the interior ringsare in place, they can be secured in permanent position by stitchingor fastening in any way, care beany openings so that the bellows may operate efficiently.

Having thus described my invention, 1 claim as new and desire to-secure by lastters Patent of the United States:

l. The method of forming bellows. comprising the use of cylindrical fabric, the orcing within said fabric of distending rings, placing restraining rings over sai fabric on either side of said distending rings, alternately putting inposition distending and restrainin rings until the proper length of bellows is i orzned, placin at the end of said bellows end rings, p111 ing the fabric than vacuum cleaners, ii dc- 1 the ends, a i

fabric, similar rings over the outside of said rings and securing it in lace by a plate ring.

2. he method of forming bellows com prising the use of cylindrical fabric, the 5 forcing within said fabric or" distcnlng rings, placing restraining rings over said fabric on either side of said distendingrings, al- 1y putting in position dietending and.

ternate restraining rings until the proper length of bellows is formed, placing at the end of said 10 bellowsend rings, and securing said fabric to said end rings.

In Witness whereof, I have hereunto subscribed my name.

rant Eritrean. 

